Trait AltString 

pub trait AltString: AltVec {
    const HAS_SET_ELT: bool = false;
    const HAS_IS_SORTED: bool = false;
    const HAS_NO_NA: bool = false;

    // Required method
    fn elt(x: SEXP, i: R_xlen_t) -> SEXP;

    // Provided methods
    fn set_elt(_x: SEXP, _i: R_xlen_t, _v: SEXP) { ... }
    fn is_sorted(_x: SEXP) -> i32 { ... }
    fn no_na(_x: SEXP) -> i32 { ... }
}

String vector methods.

REQUIRED: elt must be implemented (no default). R will error with “No Elt method found” if you don’t provide it.

Provided Associated Constants

const HAS_SET_ELT: bool = false

Set to true to register set_elt.

const HAS_IS_SORTED: bool = false

Set to true to register is_sorted.

const HAS_NO_NA: bool = false

Set to true to register no_na.

Required Methods

fn elt(x: SEXP, i: R_xlen_t) -> SEXP

Get string element at index. Returns CHARSXP. This is REQUIRED for ALTSTRING - there is no default.

Provided Methods

fn set_elt(_x: SEXP, _i: R_xlen_t, _v: SEXP)

Set element (for mutable strings).

fn is_sorted(_x: SEXP) -> i32

Sortedness hint.

fn no_na(_x: SEXP) -> i32

NA-free hint.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl AltString for &'static [&'static str]

const HAS_NO_NA: bool = true

fn elt(x: SEXP, i: R_xlen_t) -> SEXP

fn no_na(x: SEXP) -> i32

impl AltString for &'static [String]

const HAS_NO_NA: bool = true

fn elt(x: SEXP, i: R_xlen_t) -> SEXP

fn no_na(x: SEXP) -> i32

impl AltString for Box<[String]>

const HAS_IS_SORTED: bool = true

const HAS_NO_NA: bool = true

fn elt(x: SEXP, i: R_xlen_t) -> SEXP

fn is_sorted(x: SEXP) -> i32

fn no_na(x: SEXP) -> i32

impl AltString for Vec<Cow<'static, str>>

const HAS_IS_SORTED: bool = true

const HAS_NO_NA: bool = true

fn elt(x: SEXP, i: R_xlen_t) -> SEXP

fn is_sorted(x: SEXP) -> i32

fn no_na(x: SEXP) -> i32

impl AltString for Vec<Option<Cow<'static, str>>>

const HAS_IS_SORTED: bool = true

const HAS_NO_NA: bool = true

fn elt(x: SEXP, i: R_xlen_t) -> SEXP

fn is_sorted(x: SEXP) -> i32

fn no_na(x: SEXP) -> i32

impl AltString for Vec<Option<String>>

const HAS_IS_SORTED: bool = true

const HAS_NO_NA: bool = true

fn elt(x: SEXP, i: R_xlen_t) -> SEXP

fn is_sorted(x: SEXP) -> i32

fn no_na(x: SEXP) -> i32

impl AltString for Vec<String>

const HAS_IS_SORTED: bool = true

const HAS_NO_NA: bool = true

fn elt(x: SEXP, i: R_xlen_t) -> SEXP

fn is_sorted(x: SEXP) -> i32

fn no_na(x: SEXP) -> i32

impl<const N: usize> AltString for [String; N]

fn elt(x: SEXP, i: R_xlen_t) -> SEXP

Implementors

impl<I: Iterator<Item = String> + 'static> AltString for IterStringData<I>